628694b44840f6b4c4c54ee43389fe50fac77cf4
[m6w6/ext-psi] / src / module.c
1
2 #ifdef HAVE_CONFIG_H
3 #include "config.h"
4 #endif
5
6 #include "php.h"
7 #include "php_ini.h"
8 #include "ext/standard/info.h"
9
10 #include "php_psi.h"
11 #include "parser.h"
12
13 #include "libjit.h"
14 #include "libffi.h"
15
16 ZEND_DECLARE_MODULE_GLOBALS(psi);
17
18 PHP_INI_BEGIN()
19 STD_PHP_INI_ENTRY("psi.engine", "ffi", PHP_INI_SYSTEM, OnUpdateString, engine, zend_psi_globals, psi_globals)
20 STD_PHP_INI_ENTRY("psi.directory", "psis", PHP_INI_SYSTEM, OnUpdateString, directory, zend_psi_globals, psi_globals)
21 PHP_INI_END();
22
23 void psi_error(int type, const char *msg, ...)
24 {
25 char buf[0x1000];
26 va_list argv;
27
28 va_start(argv, msg);
29 vslprintf(buf, 0x1000, msg, argv);
30 va_end(argv);
31
32 php_error(type, buf);
33 }
34
35 int psi_internal_type(impl_type *type)
36 {
37 switch (type->type) {
38 case PSI_T_BOOL:
39 return _IS_BOOL;
40 case PSI_T_INT:
41 return IS_LONG;
42 case PSI_T_FLOAT:
43 case PSI_T_DOUBLE:
44 return IS_DOUBLE;
45 case PSI_T_STRING:
46 return IS_STRING;
47 case PSI_T_ARRAY:
48 return IS_ARRAY;
49 default:
50 return 0;
51 }
52 }
53
54 zend_internal_arg_info *psi_internal_arginfo(impl *impl)
55 {
56 size_t i;
57 zend_internal_arg_info *aip;
58 zend_internal_function_info *fi;
59
60 aip = calloc(impl->func->args->count + 1, sizeof(*aip));
61
62 fi = (zend_internal_function_info *) &aip[0];
63 fi->required_num_args = psi_num_min_args(impl);
64 fi->return_reference = impl->func->return_reference;
65 fi->type_hint = psi_internal_type(impl->func->return_type);
66
67 for (i = 0; i < impl->func->args->count; ++i) {
68 impl_arg *iarg = impl->func->args->args[i];
69 zend_internal_arg_info *ai = &aip[i+1];
70
71 ai->name = iarg->var->name;
72 ai->type_hint = psi_internal_type(iarg->type);
73 if (iarg->var->reference) {
74 ai->pass_by_reference = 1;
75 }
76 if (iarg->var->reference || (iarg->def && iarg->def->type == PSI_T_NULL)) {
77 ai->allow_null = 1;
78 }
79 }
80
81 return aip;
82 }
83
84 size_t psi_num_min_args(impl *impl)
85 {
86 size_t i, n = impl->func->args->count;
87
88 for (i = 0; i < impl->func->args->count; ++i) {
89 if (impl->func->args->args[i]->def) {
90 --n;
91 }
92 }
93 return n;
94 }
95
96 void psi_to_int(zval *return_value, token_t t, impl_val *ret_val, decl_var *var)
97 {
98 switch (t) {
99 case PSI_T_FLOAT:
100 RETVAL_DOUBLE((double) deref_impl_val(ret_val, var)->fval);
101 convert_to_long(return_value);
102 break;
103 case PSI_T_DOUBLE:
104 RETVAL_DOUBLE(deref_impl_val(ret_val, var)->dval);
105 convert_to_long(return_value);
106 break;
107 default:
108 RETVAL_LONG(deref_impl_val(ret_val, var)->lval);
109 }
110 }
111
112 void psi_to_double(zval *return_value, token_t t, impl_val *ret_val, decl_var *var)
113 {
114 switch (t) {
115 case PSI_T_FLOAT:
116 RETVAL_DOUBLE((double) deref_impl_val(ret_val, var)->fval);
117 break;
118 case PSI_T_DOUBLE:
119 RETVAL_DOUBLE(deref_impl_val(ret_val, var)->dval);
120 break;
121 default:
122 RETVAL_DOUBLE((double) deref_impl_val(ret_val, var)->lval);
123 break;
124 }
125 }
126
127 void psi_to_string(zval *return_value, token_t t, impl_val *ret_val, decl_var *var)
128 {
129 switch (t) {
130 case PSI_T_INT8:
131 case PSI_T_UINT8:
132 if (!var->arg->var->pointer_level) {
133 RETVAL_STRINGL(&ret_val->cval, 1);
134 } else {
135 ret_val = deref_impl_val(ret_val, var);
136 if (ret_val && ret_val->ptr) {
137 RETVAL_STRING(ret_val->ptr);
138 } else {
139 RETVAL_EMPTY_STRING();
140 }
141 }
142 break;
143 case PSI_T_FLOAT:
144 RETVAL_DOUBLE((double) deref_impl_val(ret_val, var)->fval);
145 convert_to_string(return_value);
146 break;
147 case PSI_T_DOUBLE:
148 RETVAL_DOUBLE(deref_impl_val(ret_val, var)->dval);
149 convert_to_string(return_value);
150 break;
151 default:
152 RETVAL_LONG(deref_impl_val(ret_val, var)->lval);
153 convert_to_string(return_value);
154 break;
155 }
156 }
157
158 size_t psi_t_alignment(token_t t)
159 {
160 size_t align;
161 #define PSI_TAS_D(T) struct PSI_TAS_ ##T { \
162 char c; \
163 T x; \
164 }
165 #define PSI_TAS_P(T) struct PSI_TAS_ ## T ## _pointer { \
166 char c; \
167 T *x; \
168 }
169 #define PSI_TAS_C(T) align = offsetof(struct PSI_TAS_ ##T, x)
170 #define PSI_TAS_CASE(T) { \
171 PSI_TAS_D(T); \
172 PSI_TAS_C(T); \
173 }
174 switch (t) {
175 case PSI_T_INT8:
176 PSI_TAS_CASE(int8_t);
177 break;
178 case PSI_T_UINT8:
179 PSI_TAS_CASE(uint8_t);
180 break;
181 case PSI_T_INT16:
182 PSI_TAS_CASE(int16_t);
183 break;
184 case PSI_T_UINT16:
185 PSI_TAS_CASE(uint16_t);
186 break;
187 case PSI_T_INT32:
188 PSI_TAS_CASE(int32_t);
189 break;
190 case PSI_T_UINT32:
191 PSI_TAS_CASE(uint32_t);
192 break;
193 case PSI_T_INT64:
194 PSI_TAS_CASE(int64_t);
195 break;
196 case PSI_T_UINT64:
197 PSI_TAS_CASE(uint64_t);
198 break;
199 case PSI_T_FLOAT:
200 PSI_TAS_CASE(float);
201 break;
202 case PSI_T_DOUBLE:
203 PSI_TAS_CASE(double);
204 break;
205 case PSI_T_POINTER:
206 {
207 PSI_TAS_P(char);
208 PSI_TAS_C(char_pointer);
209 }
210 break;
211 EMPTY_SWITCH_DEFAULT_CASE();
212 }
213
214 return align;
215 }
216
217 size_t psi_t_size(token_t t)
218 {
219 size_t size;
220
221 switch (t) {
222 case PSI_T_INT8:
223 case PSI_T_UINT8:
224 size = 1;
225 break;
226 case PSI_T_INT16:
227 case PSI_T_UINT16:
228 size = 2;
229 break;
230 case PSI_T_INT:
231 size = sizeof(int);
232 break;
233 case PSI_T_INT32:
234 case PSI_T_UINT32:
235 size = 4;
236 break;
237 case PSI_T_INT64:
238 case PSI_T_UINT64:
239 size = 8;
240 break;
241 case PSI_T_FLOAT:
242 size = sizeof(float);
243 break;
244 case PSI_T_DOUBLE:
245 size = sizeof(double);
246 break;
247 case PSI_T_POINTER:
248 size = sizeof(char *);
249 break;
250 EMPTY_SWITCH_DEFAULT_CASE();
251 }
252 return size;
253 }
254
255 size_t psi_t_align(token_t t, size_t s)
256 {
257 size_t a = psi_t_alignment(t);
258 return ((s - 1) | (a - 1)) + 1;
259 }
260
261 static impl_val *iterate(impl_val *val, token_t t, unsigned i, impl_val *tmp)
262 {
263 size_t size = psi_t_size(t);
264
265 memset(tmp, 0, sizeof(*tmp));
266 memcpy(tmp, val->ptr + size * i, size);
267 return tmp;
268 }
269
270 void psi_from_zval(impl_val *mem, decl_arg *spec, zval *zv, void **tmp)
271 {
272 decl_type *type = real_decl_type(spec->type);
273
274 switch (type->type) {
275 case PSI_T_FLOAT:
276 mem->fval = (float) zval_get_double(zv);
277 break;
278 case PSI_T_DOUBLE:
279 mem->dval = zval_get_double(zv);
280 break;
281 case PSI_T_INT8:
282 case PSI_T_UINT8:
283 if (spec->var->pointer_level) {
284 zend_string *zs = zval_get_string(zv);
285 *tmp = mem->ptr = estrndup(zs->val, zs->len);
286 zend_string_release(zs);
287 break;
288 }
289 /* no break */
290 default:
291 mem->zend.lval = zval_get_long(zv);
292 break;
293 }
294 }
295
296 void *psi_array_to_struct(decl_struct *s, HashTable *arr)
297 {
298 size_t i, j = 0, size = decl_struct_size(s);
299 char *mem = ecalloc(1, size + s->args->count * sizeof(void *));
300
301 if (arr) for (i = 0; i < s->args->count; ++i) {
302 decl_struct_layout *layout = &s->layout[i];
303 decl_arg *darg = s->args->args[i];
304 zval *entry = zend_hash_str_find_ind(arr, darg->var->name, strlen(darg->var->name));
305
306 if (entry) {
307 impl_val val;
308 void *tmp = NULL;
309
310 memset(&tmp, 0, sizeof(tmp));
311 psi_from_zval(&val, darg, entry, &tmp);
312 memcpy(mem + layout->pos, &val, layout->len);
313 if (tmp) {
314 ((void **)(mem + size))[j++] = tmp;
315 }
316 }
317 }
318 return mem;
319 }
320
321 void psi_to_array(zval *return_value, token_t t, impl_val *ret_val, decl_var *var)
322 {
323 zval ele;
324 unsigned i;
325 impl_val tmp;
326
327 array_init(return_value);
328
329 if (t == PSI_T_STRUCT) {
330 decl_struct *s = real_decl_type(var->arg->type)->strct;
331 ret_val = deref_impl_val(ret_val, var);
332
333 ZEND_ASSERT(s);
334 for (i = 0; i < s->args->count; ++i) {
335 decl_arg *darg = s->args->args[i];
336 decl_struct_layout layout = s->layout[i];
337 impl_val tmp;
338 zval ztmp;
339 char *ptr = (char *) ret_val->ptr + layout.pos;
340
341 memset(&tmp, 0, sizeof(tmp));
342 memcpy(&tmp, ptr, layout.len);
343 switch (real_decl_type(darg->type)->type) {
344 case PSI_T_FLOAT:
345 case PSI_T_DOUBLE:
346 psi_to_double(&ztmp, real_decl_type(darg->type)->type, &tmp, darg->var);
347 break;
348 case PSI_T_INT8:
349 case PSI_T_UINT8:
350 if (darg->var->pointer_level) {
351 psi_to_string(&ztmp, real_decl_type(darg->type)->type, &tmp, darg->var);
352 break;
353 }
354 /* no break */
355 case PSI_T_INT16:
356 case PSI_T_UINT16:
357 case PSI_T_INT32:
358 case PSI_T_UINT32:
359 case PSI_T_INT64:
360 case PSI_T_UINT64:
361 psi_to_int(&ztmp, real_decl_type(darg->type)->type, &tmp, darg->var);
362 break;
363 default:
364 printf("t=%d\n", real_decl_type(darg->type)->type);
365 abort();
366 }
367 add_assoc_zval(return_value, darg->var->name, &ztmp);
368 }
369 return;
370 }
371 ret_val = deref_impl_val(ret_val, var);
372 for (i = 0; i < var->arg->var->array_size; ++i) {
373 impl_val *ptr = iterate(ret_val, t, i, &tmp);
374
375 switch (t) {
376 case PSI_T_FLOAT:
377 ZVAL_DOUBLE(&ele, (double) ptr->fval);
378 break;
379 case PSI_T_DOUBLE:
380 ZVAL_DOUBLE(&ele, ptr->dval);
381 break;
382 default:
383 ZVAL_LONG(&ele, ptr->lval);
384 break;
385 }
386
387 add_next_index_zval(return_value, &ele);
388 }
389 }
390
391 ZEND_RESULT_CODE psi_parse_args(zend_execute_data *execute_data, impl *impl)
392 {
393 impl_arg *iarg;
394
395 if (!impl->func->args->count) {
396 return zend_parse_parameters_none();
397 }
398
399 ZEND_PARSE_PARAMETERS_START(psi_num_min_args(impl), impl->func->args->count)
400 nextarg:
401 iarg = impl->func->args->args[_i];
402 if (iarg->def) {
403 Z_PARAM_OPTIONAL;
404 }
405 if (PSI_T_BOOL == iarg->type->type) {
406 if (iarg->def) {
407 iarg->val.zend.bval = iarg->def->type == PSI_T_TRUE ? 1 : 0;
408 }
409 Z_PARAM_BOOL(iarg->val.zend.bval);
410 } else if (PSI_T_INT == iarg->type->type) {
411 if (iarg->def) {
412 iarg->val.zend.lval = zend_atol(iarg->def->text, strlen(iarg->def->text));
413 }
414 Z_PARAM_LONG(iarg->val.zend.lval);
415 } else if (PSI_T_FLOAT == iarg->type->type || PSI_T_DOUBLE == iarg->type->type) {
416 if (iarg->def) {
417 iarg->val.dval = zend_strtod(iarg->def->text, NULL);
418 }
419 Z_PARAM_DOUBLE(iarg->val.dval);
420 } else if (PSI_T_STRING == iarg->type->type) {
421 struct {char *val; size_t len;} str;
422 if (iarg->def) {
423 /* FIXME */
424 str.len = strlen(iarg->def->text) - 2;
425 str.val = &iarg->def->text[1];
426 }
427 Z_PARAM_STR_EX(iarg->val.zend.str, 1, 0);
428 if (iarg->val.zend.str) {
429 zend_string_addref(iarg->val.zend.str);
430 } else if (iarg->def) {
431 iarg->val.zend.str = zend_string_init(str.val, str.len, 0);
432 }
433 } else if (PSI_T_ARRAY == iarg->type->type) {
434 /* handled as _zv in let or set */
435 Z_PARAM_PROLOGUE(0);
436 } else {
437 error_code = ZPP_ERROR_FAILURE;
438 break;
439 }
440 iarg->_zv = _arg;
441 if (_i < _max_num_args) {
442 goto nextarg;
443 }
444 ZEND_PARSE_PARAMETERS_END_EX(return FAILURE);
445
446 return SUCCESS;
447 }
448
449 void *psi_do_calloc(let_calloc *alloc)
450 {
451 decl_type *type = real_decl_type(alloc->type);
452 size_t size;
453
454 if (type->type == PSI_T_STRUCT) {
455 /* psi_do_clean expects a NULL pointer after the struct */
456 size = decl_struct_size(type->strct) + sizeof(void *);
457 } else {
458 size = psi_t_size(type->type);
459 }
460
461 return ecalloc(alloc->n, size);
462 }
463
464 void *psi_do_let(decl_arg *darg)
465 {
466 impl_arg *iarg = darg->let->arg;
467 impl_val *arg_val;
468
469 darg->let->ptr = &darg->let->out;
470 arg_val = darg->let->ptr;
471
472 if (!iarg) {
473 /* let foo = calloc(1, long);
474 * let foo = NULL;
475 * let foo;
476 */
477 if (darg->let->val->func && darg->let->val->func->type == PSI_T_CALLOC) {
478 arg_val->ptr = psi_do_calloc(darg->let->val->func->alloc);
479 darg->let->mem = arg_val->ptr;
480 } else if (darg->var->array_size) {
481 arg_val->ptr = ecalloc(darg->var->array_size, sizeof(*arg_val));
482 darg->let->mem = arg_val->ptr;
483 } else {
484 memset(arg_val, 0, sizeof(*arg_val));
485 }
486 } else {
487
488 switch (darg->let->val->func->type) {
489 case PSI_T_BOOLVAL:
490 if (iarg->type->type == PSI_T_BOOL) {
491 arg_val->cval = iarg->val.zend.bval;
492 } else {
493 arg_val->cval = zend_is_true(iarg->_zv);
494 }
495 break;
496 case PSI_T_INTVAL:
497 if (iarg->type->type == PSI_T_INT) {
498 arg_val->lval = iarg->val.zend.lval;
499 } else {
500 arg_val->lval = zval_get_long(iarg->_zv);
501 }
502 break;
503 case PSI_T_STRVAL:
504 if (iarg->type->type == PSI_T_STRING) {
505 arg_val->ptr = estrdup(iarg->val.zend.str->val);
506 darg->let->mem = arg_val->ptr;
507 zend_string_release(iarg->val.zend.str);
508 } else {
509 zend_string *zs = zval_get_string(iarg->_zv);
510 arg_val->ptr = estrdup(zs->val);
511 darg->let->mem = arg_val->ptr;
512 zend_string_release(zs);
513 }
514 break;
515 case PSI_T_STRLEN:
516 if (iarg->type->type == PSI_T_STRING) {
517 arg_val->lval = iarg->val.zend.str->len;
518 zend_string_release(iarg->val.zend.str);
519 } else {
520 zend_string *zs = zval_get_string(iarg->_zv);
521 arg_val->lval = zs->len;
522 zend_string_release(zs);
523 }
524 break;
525 case PSI_T_ARRVAL:
526 if (iarg->type->type == PSI_T_ARRAY) {
527 decl_type *type = real_decl_type(darg->type);
528
529 switch (type->type) {
530 case PSI_T_STRUCT:
531 arg_val->ptr = psi_array_to_struct(type->strct, HASH_OF(iarg->_zv));
532 darg->let->mem = arg_val->ptr;
533 break;
534 }
535 }
536 break;
537 EMPTY_SWITCH_DEFAULT_CASE();
538 }
539 }
540
541 if (darg->let->val && darg->let->val->is_reference) {
542 return &darg->let->ptr;
543 } else {
544 return darg->let->ptr;
545 }
546 }
547
548 void psi_do_set(zval *return_value, set_func *func, decl_vars *vars)
549 {
550 impl_val *val = (impl_val *) &vars->vars[0]->arg->let->ptr;
551
552 ZVAL_DEREF(return_value);
553 zval_dtor(return_value);
554
555 switch (func->type) {
556 case PSI_T_TO_STRING:
557 psi_to_string(return_value, real_decl_type(vars->vars[0]->arg->type)->type, val, vars->vars[0]);
558 break;
559 case PSI_T_TO_ARRAY:
560 psi_to_array(return_value, real_decl_type(vars->vars[0]->arg->type)->type, val, vars->vars[0]);
561 break;
562 EMPTY_SWITCH_DEFAULT_CASE();
563 }
564 }
565
566 void psi_do_return(impl *impl, impl_val *ret_val, zval *return_value)
567 {
568 return_stmt *ret = impl->stmts->ret.list[0];
569
570 switch (ret->func->type) {
571 case PSI_T_TO_STRING:
572 psi_to_string(return_value, real_decl_type(impl->decl->func->type)->type, ret_val, ret->decl);
573 break;
574 case PSI_T_TO_INT:
575 psi_to_int(return_value, real_decl_type(impl->decl->func->type)->type, ret_val, ret->decl);
576 break;
577 case PSI_T_TO_ARRAY:
578 psi_to_array(return_value, real_decl_type(impl->decl->func->type)->type, ret_val, ret->decl);
579 break;
580 EMPTY_SWITCH_DEFAULT_CASE();
581 }
582 }
583
584 void psi_do_free(free_stmt *fre)
585 {
586 size_t i;
587
588 for (i = 0; i < fre->vars->count; ++i) {
589 decl_var *dvar = fre->vars->vars[i];
590
591 if (dvar->arg && dvar->arg->let->out.ptr) {
592 free(dvar->arg->let->out.ptr);
593 dvar->arg->let->out.ptr = NULL;
594 }
595 }
596 }
597
598 void psi_do_clean(impl *impl)
599 {
600 size_t i;
601
602 for (i = 0; i < impl->func->args->count; ++i ) {
603 impl_arg *iarg = impl->func->args->args[i];
604
605 switch (iarg->type->type) {
606 case PSI_T_STRING:
607 if (iarg->val.zend.str) {
608 zend_string_release(iarg->val.zend.str);
609 }
610 break;
611 }
612 }
613
614 if (impl->decl->args) for (i = 0; i < impl->decl->args->count; ++i) {
615 decl_arg *darg = impl->decl->args->args[i];
616
617 if (darg->let && darg->let->mem) {
618 decl_type *type = real_decl_type(darg->type);
619
620 if (type->type == PSI_T_STRUCT) {
621 size_t eos = decl_struct_size(type->strct);
622 void **ptr = (void **) ((char *) darg->let->mem + eos);
623
624 while (*ptr) {
625 efree(*ptr++);
626 }
627 }
628 efree(darg->let->mem);
629 darg->let->mem = NULL;
630 }
631 }
632 }
633
634 PHP_MINIT_FUNCTION(psi)
635 {
636 PSI_ContextOps *ops;
637
638 REGISTER_INI_ENTRIES();
639
640 if (!strcasecmp(PSI_G(engine), "jit")) {
641 ops = PSI_Libjit();
642 } else {
643 ops = PSI_Libffi();
644 }
645
646 PSI_ContextInit(&PSI_G(context), ops, psi_error);
647 PSI_ContextBuild(&PSI_G(context), PSI_G(directory));
648
649 return SUCCESS;
650 }
651 PHP_MSHUTDOWN_FUNCTION(psi)
652 {
653 PSI_ContextDtor(&PSI_G(context));
654
655 UNREGISTER_INI_ENTRIES();
656
657 return SUCCESS;
658 }
659
660 /* Remove if there's nothing to do at request start */
661 /* {{{ PHP_RINIT_FUNCTION
662 */
663 PHP_RINIT_FUNCTION(psi)
664 {
665 #if defined(COMPILE_DL_PSI) && defined(ZTS)
666 ZEND_TSRMLS_CACHE_UPDATE();
667 #endif
668 return SUCCESS;
669 }
670 /* }}} */
671
672 /* Remove if there's nothing to do at request end */
673 /* {{{ PHP_RSHUTDOWN_FUNCTION
674 */
675 PHP_RSHUTDOWN_FUNCTION(psi)
676 {
677 return SUCCESS;
678 }
679 /* }}} */
680
681 PHP_MINFO_FUNCTION(psi)
682 {
683 php_info_print_table_start();
684 php_info_print_table_header(2, "psi support", "enabled");
685 php_info_print_table_end();
686
687 DISPLAY_INI_ENTRIES();
688 }
689 const zend_function_entry psi_functions[] = {
690 PHP_FE_END
691 };
692
693 zend_module_entry psi_module_entry = {
694 STANDARD_MODULE_HEADER,
695 "psi",
696 psi_functions,
697 PHP_MINIT(psi),
698 PHP_MSHUTDOWN(psi),
699 PHP_RINIT(psi), /* Replace with NULL if there's nothing to do at request start */
700 PHP_RSHUTDOWN(psi), /* Replace with NULL if there's nothing to do at request end */
701 PHP_MINFO(psi),
702 PHP_PSI_VERSION,
703 STANDARD_MODULE_PROPERTIES
704 };
705
706 #ifdef COMPILE_DL_PSI
707 #ifdef ZTS
708 ZEND_TSRMLS_CACHE_DEFINE();
709 #endif
710 ZEND_GET_MODULE(psi)
711 #endif
712
713 /*
714 * Local variables:
715 * tab-width: 4
716 * c-basic-offset: 4
717 * End:
718 * vim600: noet sw=4 ts=4 fdm=marker
719 * vim<600: noet sw=4 ts=4
720 */